Ethnobiology, ethnomedicine and ethnopharmacology practices among three tribes of Similipal Biosphere Reserve, Odisha

India is a veritable emporium of herbs. The inhabitants of India knew of the medicinal use of plants from time immemorial. Under the impact of state-sponsored economic development programmes and processes of modernization, the traditional cultures of tribal communities have begun to change. Deforestation and the replacement of natural forests by commercial teak-sal plantations have in many areas reduced the availability of forest produce including vegetables, fruits and meat.